Home / 158,124.60-218,202.66-86,490.36

Finding the Fourth Proportional to 158,124.60, 218,202.66 and 86,490.36

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Solution

The fourth proportional to 158,124.60, 218,202.66 and 86,490.36 is: 119,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,124.60 : 218,202.66 = 86,490.36 : x
  2. Step 2: Convert to fraction form
    158,124.60/218,202.66 = 86,490.36/x
  3. Step 3: Cross multiply
    158,124.60x = 218,202.66 × 86,490.36
  4. Step 4: Simplify right side
    158,124.60x = 18,872,426,616.36
  5. Step 5: Solve for x
    x = 18,872,426,616.36/158,124.60
  6. Step 6: Final answer
    x = 119,351.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.